An Experimental Study on the Properties of Fe-Based Amorphous Composite Coatings Prepared by Different Processes

De Juan Xie; Zong De Liu; Wei Qiang Hu; Yong Tian Wang

doi:10.4028/www.scientific.net/AMR.239-242.2137

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Synthesis of Ti₃SiC₂ via Modified-SHS System through Arc Melting
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Synthesis, Crystal Structure and Antimicrobial Activity of a Mixed-Ligand Copper (II) Complex [Cu(pht)₂ (phen)H₂O]
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An Experimental Study on the Properties of Fe-Based Amorphous Composite Coatings Prepared by Different Processes
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The Investigation of Back-Mixing Particles near Dust Outlet in Cyclone Separator with Tangential Inlet
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Preparation and Characterization of Bi₄Si₃O₁₂ Powders by Templates-Hydrothermal Method
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Synthesis,Crystal Structure and Antibacterial Activity of Nickel Complex with 5-Bromo-2- Hydroxyphenyl Ethyl Ketone Benzoyl Hydrazone
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Research on Preservation of Synsepalum Dulcificum by Coatings
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 239-242An Experimental Study on the Properties of...

An Experimental Study on the Properties of Fe-Based Amorphous Composite Coatings Prepared by Different Processes

Abstract:

Fe-based amorphous composite coatings were deposited on the surface of ASTM-1020 steel plate by different technologies: arc spraying, laser remelting, TIG remelting (with and without water cooling). The microstructure, phase structure and micro-hardness were characterized by using a combination of SEM, XRD and Vickers hardness tester. It shows that the coating prepared by arc spraying presents typical lamellar structure and poor adherence to the substrate. After the remelting treatment, the coating quality is significantly improved by decreasing structure defects such as cracks and pores; the interface shows the metallurgical bonding. The dendritic crystals could be obtained within all the remelted coatings with different appearances. The microstructures of TIG remelted coatings show much more regular and have obvious orientation, which cannot be seen in laser remelted coating. However, the average grain size of the laser remelted coating is much smaller than that of TIG remelted coatings. The micro-hardness values of all of the deposited coatings are much higher than that of the substrate, and the coating prepared by laser remelting shows the highest hardness.